Film-developing machine.



.56 of, my special form of s ool and t e closure of 55 w ereby the'lmmay be wound upon the UNiTED STATES -rAjrnNT oFFIoE.

ALEXANDRIA, MINNESOTA.

- FILM-DEVELOPING MACHINE.

Specification of Letters Patent.

yPatented March 13, 1906.

Application filed April 27, 19071.V Renewed November 28, 19,05. SerialNo. 289,526.

` To `1f/ZZ whom t may concern:

Be it known that I, ALBERT V. LINDQUIST, y a citizen of. the UnitedStates, residing at Alexandria, in the county of Douglas and State ofMinnesota, have inventedD certain new and useful Improvements inFilm-Devel'o ing Machines; and I do hereby declare the ffillowing to bea full, clear, and exact description of the invention, such as'willenable others skilled in the art to which it appertains to make and usethe same'.

My invention relates to means for developing sensitized :films employedvin photography; and4 it consists of certain novel features ofcombination and construction of parts, the preferred form -whereof willbe hereinafter clearlyset forth, and pointed out in the claims;

The prime object of my. invention, among others, is to provide means fortaking the film from the kodak or other photographic a `paratus andunwind the same from the iiv .K -carrier and windit upon anothersuitable roller in such' a manner that the developing solution canreadily reach all parts ofthe sensitizedsurface thereof withoutsubjecting. the film to exposure to light.v

Other objects and advantages will be hereinafter made clearly apparent,reference being had to the accompanying drawings, which 3Q areconsidered a part of this application, and

l in which- A Figure 1 shows a perspective view of my apparatus comlete. Fig. 2.is a central sectionahview of FPig. 1. "Fig, 3 is aperspective ydetail viewl of the winding-spool upon which thefilm is"-Wound from the i1m.carrying l spoolof the photogra hic ap aratus.` F1.4 is a perspective deta` view s owing the iiImroll as taken fromthephotora hic apparatus, indicating how it 1s pai .o from said rolleruponmy special form of s ool adapted to introduce 'the developin sofiltionto the sensitized 'surface of the m. Fig. 5 is a `transverse section ofmy special form of arryingspool of the photographic,apparatus,indicatinghow ,the two v spools are temporarily connected together in i order.that the film may be` delivered from one tothe other. Fig. 6 is a persective view the receptaclevdesigne to receive the same. Y Fig. 7 is apers ctive detail view of a part of the device em oyed for temporarilyconnect m'y speciai) form of spool to the-film-roller For convenience ofreference to the various detalls of my invention and cooperatingacspecifically set forth, and the sensitized film sensitized surfacethereof will not contact with anything whatever, but will begheldproperly se arated, whereby the developing solution wi reach everypartof the surface thereofas is essential for itsvproper development.IReferring to the numerals on the drawings, 1 indicates the body portionor casing, which, as before stated,'is .preferably formed of aluminium,whereby it will more properly resist the corrodingeflectsof thedeveloping solution, a suitable closure or lid section 2 beincaring-seat, as indicated by the disk-like receive the inwardly-directedcrank-like terminal .5 of the handlewmember '6, said disk though leftfree X4to rotate.4

terminal 5 I rigidly secure the spring-arms-7, each '.rovided with ahook-terminal 8, designed) to enga e the recesses 9 in the end of the`spool 10, t e body portion of the spool body portion 11 is tubular, aswill be ob served by reference toFig. 2, and is provided throughout itssurface with a plurality of openings being ormed, theirloffice being tplfacilitate'the introduction ofthe developin pointed out. I also providea slot 13 in the urP glear the ends of the body portion'll IA alsoprovide'the slots 14, intended for the purpose special roller.

'ofvreceiv'ing theknotted 'ends of the braid wound thereon so separatedwhereby they provided, said lid-section having a centra being tightlysecured to? the terminal 5, whereby it will 1be held in properposition,'

being'designated bythe numeral 11. VThe ody ofthe spool, said lslotbeing desi ed to receive' the end of the-black strip o -paper 1 commonlywound upon the film-,spool forv the ose of excluding the lighttherefrom.`

cessories numerals will be employed, the

eing so constructed, as will be hereinafter,

members 3 and 4, said seat being designed to To the extreme inner end ofthe :crank-like 'openings 12, an preferred number of said huid, as 'willbe hereinafter more particular y VL IIO hereinafter partlcularlydescribed.

It becomes necessary to provide asuitable connecting device for myspecial form of spool and the film cartridge or spool as it `leaves thephotographic apparatus, whereby the film may be wound u onim specialform of spool, and with' this o ject 1n view I provide a carriage forthe cartridge comprising the end sections 16, connected with each otherby the late 17, said end sections being provided wit inwardly-.directedtrunnions sp'oolsand permit the free rotation'thereof incldent tounwindin the film. The end sections are also rovided with thespring-arms 19, which also ave inwardly-directed extensions 20 of pro ersize -to be received by the tu'biilar bore othe body-section 11, thoughof such form as to freely admit the 'passage of thedeveloping solutioninto said' bore and thence outward throu h the plurality of ap-4 ertures12 and into t e annular space between each successlve layer of film andbetween the two braids disposed along the edges ofthe film after thelatter has been Wound upon the special form of spool,.as before lexlained. v

It Wi l be observed that the end sections or disks 10 of my special formof spool are of comparatively large diameter, which will 'insure thatthe edges. of the film wound upon the spool-bod will be fully protectedand the light excludefiwhiledthe transferring p rocess from differentsolutions is'being carried out7 `the two black braids, 15' also servingthe double purpose of excluding the light and se arating the film fromcontactwlth any ot er uring the winding f the film and the black strip'of paperaccompanying the same u on my s ecial form of spool the end ofthe b ack brai, 15 isv passed throu h an aperture 21 in the plate 17, aspringger 22 being provided to insure thatl the braid Will be wound uponthe special form of spool without twistin the said finger also havingthe req-- uisite bgegree of ,f tensionto keep the braid taut gv e beingwoundfwh'reby it will not be paid of'f faster than 1s required,and,thusJ become twisted"or tangled. l l

.As will be observed by reference to Fig. 2,

the spring-arms 7 when placed engage,

surface of the' latter l18 designed to take into the bore of thefilmmediation ofthe notches or recesses 9 will infrom the receptacle 1when the closure or lid member'2 is withdrawn, thereby affording aconvenient and cleanly means of removing the spool from the solutionWithin the receptacle 1. After the film and the strip of black paperaccompanying the same' have been wound upon my special form of spool theends of the braid may be passed through one of a plurality of apertures23,and thus secured against casual unwinding,which will held tightly inplace ready to be introduced into the developing solution. After thelfilm and its accompanying strip of paper have been unwound from thecartridge or the s ool photographic apparatus and the ends of the raid15 properly secured, as by passing the same through the aperture 24, theentire s ool 11 and its accompanying load are intro-l uced intothereceptacle 1, which latter is provided with a proper quantity of thedevelo ing solution,l and it obvious that by way throughout the entiresurface of the film andv act thereon as desired. After a proper ingsolution and the film the closure or lid 2 may be'removed, .taking Withfit my special form of spool and thev treated film thereof read for anysuccessive treatment by means of ot er forms of solution, as requirespool is tubular and provided with a plurality of openings the solution'will readily find its way throu h vsaid openin and thence between theraids 15 and t p oughout the annular space left between the successiveWindin of the-film. l

Ist will thus be seenthat I'ha've provided `scribe-,d the"preferredcombination and construction of parts I desire to comprehend in this aplication all substantial equivalents falling fairly within my invention.l

tages, and manner of using my invention have lbeen made clearlyapparent, fur- 24 upon which it came from the koda or turning thehandle' the solution will find' its contact has'been made between thedevelopa reliablyefiicient appliance .for .totally eir-A and su stituteswhich maybe regarded as the scope and purview of' sure that the entirespool will be'removed also insure that the paper and the film u ll be IIOO It is obvious that since the .body 11 of my IIO' the` ideas setforth, and while I have de- Believing that the construction," advaning ahol ow body portion eing'provide'dwith a lon itu- .dinal slot or othermeans carried by said ody portion to engage the end of the stri of paperaccompanym the film; a pair o braids connected to sai s ool and ada tedtobe wound thereon simu taneously wit the wind`` m of the paper and filmwherebythe braids Iw1 l be disposed at the edges of the film to hold thelatter isolated from other arts, the said spool having eXtended flangesor the exr4clusion of light; a carriage cooperating with the ends of thespool and adapted to carry the film cartridge that a film may be un-V'sections wound therefrom u on said spool, in combination -with, a suitale rece tacle'adapted to receive the4 said s ol andP the film carriedthereon i and suita le means to connect it with thfe lid of said recetacle that the spool may be rotated withint e solution .contained inlsaid receptacle, all combined substantially as specified and' for thepupose set forth'.

2. The herein-descrl e filmfdeveloping machine, comprising a f suitablereceptacle hav' 'a removable closure vat one end, a spool aving a hollowbody portion and end 10, adapted to enter said receptacle, means carriedby said closure adapted to engage said spool whereby'the same may bero.- ta-ted, 4braid members secured to said body ortion at eachendthereof adjacent to the inner' face of said 'end sections, ada l tedto be wound upon the spool-body simu taneously with the Winding thereonof the sensitized l film whereby a vchannel will be formed be tween eachsuccessive'windmig of the film through which the develo ing uid'ma flowand come' .in contact wit the film, al `substantially as set forth.,

3.l In a film-developing machine the com- 4 y bination with'afilm-receiving spool havin a holloxisr body-portion and a longitudinal sot:

in said bod portion adapted to engage the end of the m and cause it towind thereon, of a carriage comprising the end sections 16 `and plates17 inwardlydirected trunnions 18 carried by saidend sections and adaptedto receive a film carrying cartridge, and

spring-arms extending from said end sections v having inwardly-directedextensions adapted to enter the bore of said bodyy portion and` disposethe cartridge in pro er juxtaposition to deliver said film to sailspool, substantially as set forth.

4. In a film-developing machine the combination with a film-carryingspool having a hollow body portion and braids secured thereto, of aframe adapted to carry a film-car;v tridge and `dispose the film inposition to be wound upon said s "col, arms ada ted to removably securesaid frame, to said y'raids and dis ose .the same at a proper tensionbetween eac successive winding of the film u on the bod portion of saidspool, substantlally as .set Orth.'

5. The hereindescribed film developing l machine, comprising a suitablereceptacle having aremovable closure, a spool having a hollow bodyportion and end sections, adapted to* be received by said receptacle,said y body portion havin a lo 'tudinal slot to receive the` free end'of the and also having openings for'the passage of-the developingsolution, means to engage and rotate sai spool, braid members .secured tsaid body portions Yadjacent to the end sections of said spool, andmeans to dispose said .braidmembers at a roper tension between eachsuccessive win ing of the film u 'on said body portienvwhereby a spacewi l be left between each successlve winding of the film through whichthe developin Huid may flow and come in contact with t e sensitizedsurface of the film, all substantially as set forth.

In testimony whereof I have signed my 'Witnesses GEO. L. TREAT, J. VS.COWEN.

witnesses. i mLBERT LINDQUIST.

